At a Glance
- Tasks: Develop and support critical software applications for large-scale operational systems.
- Company: Leading technology organisation with a collaborative engineering culture.
- Benefits: Hybrid working, competitive salary, annual bonus, and professional development opportunities.
- Other info: Opportunity to work on cutting-edge satellite technologies and grow your career.
- Why this job: Join a team tackling complex challenges and make an impact on critical services.
- Qualifications: Degree in Computer Science or related field; strong Java and JavaScript skills required.
The predicted salary is between 60000 - 80000 £ per year.
A leading technology organisation is seeking an experienced Senior Software Engineer to join a team responsible for developing and supporting critical software applications used to monitor, analyse, and optimise large-scale operational systems. This is an exciting opportunity for a hands-on engineer to work on real-time data platforms, operational tooling, and service assurance solutions that provide valuable insights into complex network environments. You will play a key role in designing, developing, and maintaining software that supports business-critical operations, working closely with engineering teams, product stakeholders, and operational users.
The role combines software development, system integration, troubleshooting, and continuous improvement, making it ideal for someone who enjoys solving complex technical challenges and delivering reliable, scalable solutions.
Key Responsibilities- Develop, enhance, and support software applications used within operational environments.
- Design and implement new features based on user and business requirements.
- Work closely with engineering teams to understand system architectures and ensure effective monitoring and data collection capabilities.
- Analyse system performance, troubleshoot issues, and support operational teams with fault diagnosis.
- Participate in software design, code reviews, testing, and documentation activities.
- Collaborate with internal stakeholders, product teams, and third-party suppliers to deliver effective solutions.
- Support the ongoing maintenance and improvement of operational systems.
- Identify opportunities to improve processes, tooling, and software reliability.
- Contribute to the full software development lifecycle, from requirements gathering through to deployment and support.
- Provide technical support for live operational systems, including occasional on-call responsibilities.
- Degree in Computer Science, Software Engineering, or a related technical discipline.
- Strong hands-on experience developing software using Java within a real-time operational environment.
- Strong experience with JavaScript and Node.js development.
- Experience working with both Windows and Linux operating systems.
- Good understanding of IP networking and experience troubleshooting network issues using tools such as Wireshark or similar.
- Experience working with event streaming technologies such as Kafka.
- Strong understanding of the full software development lifecycle.
- Experience producing high-quality, maintainable, and reusable software within a collaborative engineering environment.
- Understanding of object-oriented analysis, design principles, and common design patterns.
- Strong communication skills with the ability to collaborate effectively across technical and non-technical teams.
- Aware of software and network security best practices.
- Experience producing clear technical documentation to support ongoing development and operational support.
- Real-time monitoring or service assurance platforms.
- Large-scale distributed systems.
- Data analysis and operational dashboards.
- Network management or telecommunications environments.
- Supporting production systems within a 24/7 operational environment.
You will be a proactive and curious engineer who enjoys understanding complex systems, identifying improvements, and developing practical solutions. You will have strong technical ownership, excellent problem-solving skills, and the ability to work collaboratively across engineering and operational teams.
This is an opportunity to contribute to highly visible software platforms that support critical services while working within a technically challenging and collaborative engineering environment.
Benefits- Hybrid and flexible working arrangements.
- Competitive salary and comprehensive benefits package including annual bonus.
- Pension scheme and private healthcare.
- Professional development and training opportunities.
- Opportunity to work on cutting-edge satellite technologies.
- Collaborative engineering culture with exposure to complex international programmes.
Senior Software Engineer in London employer: Holt Executive
Holt Executive is an excellent employer, offering a dynamic work culture that fosters innovation and collaboration in the field of advanced flight simulation systems. Employees benefit from generous perks such as a discretionary bonus, private medical insurance, and a robust pension scheme, alongside ample opportunities for professional growth and development in the picturesque setting of Pulborough, UK.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Software Engineer in London
✨Join Local Tech Meetups
Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Holt Executive or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!
✨Contribute to Open Source Projects
Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Holt Executive.
✨Tap into Online Developer Communities
Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like Holt Executive.
✨Explore Job Boards Specifically for Tech Roles
Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like Holt Executive that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!
We think you need these skills to ace Senior Software Engineer in London
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Holt Executive.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Holt Executive and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!
How to prepare for a job interview at Holt Executive
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Holt Executive uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.
